Air-separator.



l e-326,772. PATENTED JULY 24, 1906. G. s.-EM RIO K. AIR SEPARATOR.

APPLICATION FILED J'AN.5,1905. RENEWED MAY 26,1906.

G E Z7 G A I L 1 7; l H I T it? P f j? j W I O 6 W i 0 O Q HJTNL'SSES. JNVENTOR.

' gy z cf Mir? ATTORNEY.

. citizen of the UNITED srATEs PATENT OFFICE.

K GEORGE s. EMERICK, OF PHILADELPHIA, PENNSYLVANIA.

' A'lR-SEPAR ATOR.

To all whom it may concern."

Be it known that I, GEORGE S. EMERICK, a United States, residing at No. 125 Osborne street, 'VVissahickon, in the city and county of Philadelphia and State of Pennsylvania, have invented a new and useful Improvement in Air-Separators, of which the following is a specification.

My invention relates to improvements in machinery whereby relatively fine material of any description may be separated into further grades of fineness by means of the weighing action of air-currents in combina- -t1on with means for distributing said'mateu p b rial to the action of such air-currents by centrifugal force.

To accomplish this object, my invention involves the features of construction and combination or arrangement of devices hereinafter described and claimed, reference being made to the accompanying drawing, in which the figure is a vertical section of the entire apparatus.

In the figure, A is an outer casing having the inner casing B concentrically disposed within and provided with the auxiliary chamber C. The rotatable hollow shaft D is mounted in the top of the casing A in the bearings E and actuated by the pulley F. Upon the hollow shaft D are mounted the fans'G, and upon the lower end of said shaft is mounted .the discharge-plate H. lVithin the hollow shaft 1) is located the non-rotary feed-pipe I, having mounted in its upper end the hopper J andsupported by th fran'ie K. To the inner periphery of the casing B is sei cured the cylindrical ring \L, which I term a of the discharge-plate ll.

sage-way between its out or retarding-ring, so disposed as to leave passide ar d the inner periphery of the casing B and likewise a passage-way between its inner side and the lip The casing It is furnished at its lower end with the outlet/M. The chamber C is secured to the lower end of the casing A and conununicalcs with the casing B by means of the pipes N, furnished with suitable valves or dampers and with the cover 1, shown in the upper elbow of one of said pipes N.

The mode of operation of tLlJS0]iztl:Ll'/01 is as follows: The umterial to be separated being inl roduced by the hopper J into the feed-pipe l is deposited upon the discharge-1)latc ll, which, together with the fans G, is rotated by means of the hollow m improved Specification of Letters Patent. Application filed January 5, 1905. Renewed May 26,

Patented July 24, 1906. 1906. Seria1Ne 318,831.

shaft D and pulley discharge-plate H deposited thereon by centrifugal action outwardly against the retarding-ring L. The rotation of the fans G creates a draft or upward current of air, which carries the fine particlesof material thrown outward from the discharge-plate upward through the top of the casing B and into the casing A, through which said particles fall or settle o the bottom of saidcasing and passing through the chai'nber C are finally discharged at the outlet Q. e coarser particles of material dis- F. The rotation of the distributes the material tributed from the discharge-plate are not carried upward. by the draft scribed, but fall by gravity to the bottom of the chamber B and passingout through the outlet M may be collected for reintroduction into the hopper J orfor further nllverization, as thccasemaybe.

The two features wherein my invention consists are, first, the cylindrical retarding ring L, whereby the material discharged from the plate H is prevented from passing to the of air above de nner wall of the chamber B, where the ascendingair-current has little or no opportunity to pick it up. The office of the retarding-ring is to hold the material discharged more completely in the ascending current of air, and thus contribute to fuller and more ready separating action of such air-current. The second feature of my invention consists in the arrangement of pipes N, whereby instead of drawing the supply of air from without the apparatus I am enabled to use the same air in a continuous current, the circuhv tion 0 air being shown by the arrows, usindiTa'tedin the drawing. The circulation of air in the pipes N can be controlled by the dampers O, and any tendency to a deposit of material carried in suspension by the air current along the horizontal sections of the pipes l is provided for by the cover 1, which consists of a removable section of the pipe N at a point where the accumulation of malc rial in the horizontal sections ol the pipes N can readily be reached and removed should such accumulation take place.

'hat 1 claim as my invention, and to secureb v Letters Patent, is

1. in combination. in an air-separator, an outer casing, an auxiliary chamber joined to and comnumicating with the outlet of said. outer casing, an inner casing disposed within said outer casing, and a plurality of pipes desire forming a vennectien between said auxiliary l charge-plate and said casing, whereby the chamber and saidmner casing, substantially materlal dlstributed from said dischargeas and [er the purposes described. I

2. in )i1ibii1aliei1, in an air-separator, an} wall of said inner casing and retained in the outer casing, an auxiliary chamber joined to 1 path of the ascending air-currents therein, and cum.mn'iieating with the ontlet'of said. substantially as described.

outer casing, an. inner casing disposed within i In testimony whereof I have signed my said enter casing, means such as pipes N, name to this specification in the presence of iermin a cei'nmunication between said auxtwo subscribing WltIlGSSOS'.

iliary chamber and said inner casing, a rotary i dischargmplate adapted to centrifugally distribute material within said inner casing, an 1 a cylindrirtal retarding-ring between said disi GEORGE "S. EMERIOKV Witnesses:

O.'VICTOR EMERICIQ H. B. SGHEIQMERIIORN.

plate is checked in its passage toward the 

